Primer for explosion-engines.



P 1. & 6,. H. GEORGENSON. PRIMER FOR EXPLOSION ENGINES.

I APPLICATION FILED DEC-3 -I94- wwww Patented July 11, 1916.

Inventorj tit PETER J. GEOBGENSON AND CLARENCE H. GEOBGENSON, OF TUSTIN, WISCONSIN.

PRIMER FOB EXPLOSION-ENGINES.

Specification of Letters Patent.

Patented July it, mic.

Application filed December 3, 1914. Serial No. 875,309.

for Explosion-Engines, of'which the following is a specification. I

The present invention relates to improvements in primers for explosion engines, one object of the invention, being the provision of a priming apparatus, in which there is disposed a pump, the same being adapted to be attached to the dash board of automobiles where the present system is used in connection therewith and such pump being provided with means for cutting 0d the valve controlled supply pipe from the main gaso-- lene supply so that when the same is inactive there is no possibility of the gasolene leaking through the present priming sys tem.

A further object of the present invention, is the provision of a spray nozzle adapted to be connected to the carbureted air admit ting chamber of the explosion engine so that upon the push stroke of the pump, the charge of gasolene is sprayed in a vapor or mist so as to insure the mixture to a certain extent of a carbureted air at the initial priming of the engine with the present aparatus.

A still further object of the invention, is the provision of an inexpensive, simple and durable apparatus which is readily installed in connection with the explosion engines especially for automobiles, although the same may be readily connected for use in connection with marine engines, the pump being so constructed and arranged as to be disposed in an unobjectionable position and at the same time be ornamental and attractive in appearance.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the com bination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

Tn the drawings-Figure 1 is aside elevation of an explosion engine, the same being merely diagrammatic with the present apparatus also shown diagrammatically in use. Fig. 2 is a cross section through the head of the explosion engine showing the present spraying nozzle in operable relation thereto. Fig. 3- is a vertical sectional view through the dash board and through the pump showing the supply and directing pipe and the valve controlling the same, the plunger being in its normal position.

Referring to the drawings, the numeral 1 designates an explosion engine, which in the present instance is provided with a bifurcated intake'manifold 2, while 3 indicates the main fuel supply pipe. Connected to and leading from the fuel supply pipe, is a pipe 4 which is connected in the casting or fitting 5, so that the ball valve 6 acts as a check to prevent the back flow of the fuel when the same is drawn upwardly through the pipe 4. This casting 5 is provided with the channel 7 which leads from the supply pipe 4; to the conical recess or valve seat 8 which in turn has a port 9 leading to the fuel directing pipe 10, a ball check valve 11 being provided to prevent the liquid beyond the valve 11 from being withdrawn into the pump cylinder 12 which is fitted within the recess of 12 is provided with the supporting plate 13 which is adapted to be attached to one side of the dash board 14: so that a portion of the cylinder will be projected upon the operators side thereof. Secured upon the outer end of the pump cylinder 12 is a cap 15 which is'provided with a locking thread 16 for the reception of the exterior thread 17 of the plunger rod 18. This plunger rod 18 is provided with the operating .head 19 which is always in ready position to be gripped by the operator. Carried upon the inner end of the rod 18 is the plunger 20 and the frusto-conical 'valve 21 which constitutes a closing or needle valve for the valve seat 8, so that the port 7 will be out off and thus the casting 5. The pump cylinder prevent the flow of fuel through the pipe 4 that when it is dethe thread 16 of the cap 15 at which time, U

the plunger rod 18 may be withdrawirto cause fuel to be drawn from the supply plpe 3 through the pipe 4: into the pump cylinder below the piston 20. At this time, the

. spraying nozzle 21 valve 11 is seated and the valve 6 is removed from its seat so that the liquid fuel may flow in the proper direction. By forcing the plunger downward, the-valve -6 is seated and the valve 11 is forced open, so that the fuel below the plunger 20 will be forced into the pipe 10 which is led to the bifurcated end of the manifold 2 to the connected therein, and as particularly illustrated in Fig. 2.

The spraying nozzle 21' is preferably made in the shape of an elbow with the ex-' teriorly threaded portion 22 for seating within the intake manifold, preferably in a vertical position so that the nozzle or jet member 23 provided with the exteriorly threaded stem 24% and fitted within the internally threaded portion 25 of the member 21, will be projected well within the intake manifold at a point above the intake valve ereof so that the jet opening 26 which is disposed in a substantially horizontal plane and projects toward the intake valve of the engine may properly direct the atomized supply of fuel thereto.

In order to provide a means for spraying the injected fuel and thus greatly assisting in the thorough mixture thereof with the air, the interiorly threaded opening 27 is provided in the jet member 23 for the reception of the threaded end 28 of the spraying member 29. By this means, the member 29 may be adjusted relatively to the opening 26 and thus regulate the diameter of the spray emitted therefrom.

From the foregoing description, it is evident that with the pump construction here shown, no extra valves are necessary to cut the supply pipe 4 from the pipe 10, it being merely necessary to seat the frusto-conical end 21 well within the seat 8, the same being locked therein by means of the threads 16 and 17 dentally displaced. Thus the usually manually controlled valves that have been formerly found necessary in fuel tems heretofore used, with. Furthermore, and arrangement of pumps, the same is readily applied through the dash board of an automobile so that the handle 19 is in are entirely dispensed so that the valve 21 may not'be accipriming syswith this; construction ready access to the operator and only projects a sufficient distance to permit of the proper rotation of the head 19 and the proper reciprocation of the plunger rod 18.

By providing the member 21 so that the same may be readily insertible within the upper end of the intake manifold as shown in Fig. 2, it is evident that the vaporized fuel is properly directed at a point in close proximity to the intake valve, thus insuring upon the initial depression of the plunger 20 a practically carbureted air instead of the liquid fuel which isthe usual practice in priming devices of this character. It is also evident that with an apparatus of this character that less fuel is necessary in view of the fact that the same is atomized instead of introduced in a solid stream.

lVhat is claimed is:

1. A priming attachment for explosion engines embodying a pump cylinder, a cap upon one end thereof, a fitting upon the other end thereof having a conical valve seat and a pair of channels extending to said valve seat for the attachment of pipes leading to an intake manifold and a source of fuel, check valves in said channels, and a plunger rod movable through said cap and having a plunger working within the cylinder and a frusto-conical valve to enter said valve seat, the plunger rod having a threaded portion adapted to screw into said can for seating said frusto-c0nical valveand holding it seated.

In a priming device, a cylinder, :1 piston having a valve member, a port constituting a valve seat and communicating with an engine cylinder, a supply conduit communicating with said 'port, whereby said valve member when in engagement with said seat closes both the port and the conduit.

as our own, we have hereto affixed our signatures n the presence of two witnesses.

'ERNEs'r E. VERGIN, FRANK BLAISDELL.

In testimony that we claim the foregoing 

